/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/Abilities/GameplayAbility.h
True if we are authority or we have a valid prediciton key that is expected to work
bool HasAuthorityOrPredictionKey ( const [FGameplayAbilityActorInfo](API\Plugins\GameplayAbilities\Abilities\FGameplayAbilityActorInfo) * ActorInfo, const [FGameplayAbilityActivationInfo](API\Plugins\GameplayAbilities\FGameplayAbilityActivationInfo) * ActivationInfo ) const